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TW200746066A - Disk-shaped record medium and producing method for same, disk recording method and device, and disk playback method and device - Google Patents

Disk-shaped record medium and producing method for same, disk recording method and device, and disk playback method and device

Info

Publication number
TW200746066A
TW200746066A TW095136022A TW95136022A TW200746066A TW 200746066 A TW200746066 A TW 200746066A TW 095136022 A TW095136022 A TW 095136022A TW 95136022 A TW95136022 A TW 95136022A TW 200746066 A TW200746066 A TW 200746066A
Authority
TW
Taiwan
Prior art keywords
disk
cpid
record medium
shaped record
sector
Prior art date
Application number
TW095136022A
Other languages
Chinese (zh)
Other versions
TWI372388B (en
Inventor
Shoei Kobayashi
Tamotsu Yamagami
Yuji Takagi
Makoto Usui
Paulus Gijsbertus Petrus Weijenbergh
Rompaey Bart Van
Original Assignee
Sony Corp
Matsushita Electric Industrial Co Ltd
Koninkl Philips Electronics Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp, Matsushita Electric Industrial Co Ltd, Koninkl Philips Electronics Nv filed Critical Sony Corp
Publication of TW200746066A publication Critical patent/TW200746066A/en
Application granted granted Critical
Publication of TWI372388B publication Critical patent/TWI372388B/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00297—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
    • G11B20/00304—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/00623—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format directly concerns user data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

To record specific information to a disk-shaped record medium and reproduce the recorded specific information without any influence on the error correction capability. Copy protection information (CPID) having an error correction code appended thereto, shuffled and otherwise treated is sent as a CPID bit block to an EDC rewrite circuit (14). The EDC rewrite circuit (14) rewrites an error detection code appended to user data in each sector in accordance with bit information in the CPID bit block. Thereafter, the data in each sector is scrambled, and an ECC block including a plurality of sectors is modulated with an error correction code and sync signal appended thereto. The modulated signal is recorded in a reserve area of a lead-in area of the disk-shaped record medium. During reproduction, CPID is restored based on the result of error detection of each sector.
TW095136022A 2005-09-30 2006-09-28 Disk-shaped record medium and producing method for same, disk recording method and device, and disk playback method and device TWI372388B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005288428A JP5021197B2 (en) 2005-09-30 2005-09-30 DISC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF, DISC RECORDING METHOD AND DEVICE, AND DISC REPRODUCING METHOD AND DEVICE

Publications (2)

Publication Number Publication Date
TW200746066A true TW200746066A (en) 2007-12-16
TWI372388B TWI372388B (en) 2012-09-11

Family

ID=37734231

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095136022A TWI372388B (en) 2005-09-30 2006-09-28 Disk-shaped record medium and producing method for same, disk recording method and device, and disk playback method and device

Country Status (6)

Country Link
US (1) US8305856B2 (en)
EP (1) EP1941508A1 (en)
JP (1) JP5021197B2 (en)
CN (1) CN101278346B (en)
TW (1) TWI372388B (en)
WO (1) WO2007037537A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101607307B1 (en) 2009-07-09 2016-03-30 삼성전자주식회사 information encoding method, information decoding method, recording/reproducing apparatus, and information storage medium
JP2021140835A (en) * 2020-03-02 2021-09-16 株式会社東芝 Magnetic disk device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63140461A (en) * 1986-12-02 1988-06-13 Nec Corp Exchange type medium recording system
US5930367A (en) 1995-08-31 1999-07-27 Sony Corporation Apparatus for recording/reproducing or transmitting/receiving signal data having a portion of an error correction code replaced with other information and methods thereof
JP3580041B2 (en) * 1995-08-31 2004-10-20 ソニー株式会社 Signal recording method, signal transmission method and apparatus, and signal reception method and apparatus
JP3488603B2 (en) * 1997-09-16 2004-01-19 株式会社東芝 Copy protection system using digital watermark
NZ526643A (en) 2000-11-27 2006-07-28 Macrovision Europ Ltd A copy protected DVD disc and method for producing and validating same
JP2003198831A (en) * 2001-12-26 2003-07-11 Toshiba Corp Signal processing method and apparatus, signal reproduction processing method and apparatus, recording medium
JP3900984B2 (en) * 2002-03-25 2007-04-04 ソニー株式会社 RECORDING MEDIUM, DATA RECORDING METHOD, DATA RECORDING DEVICE, DATA REPRODUCING METHOD, AND DATA REPRODUCING DEVICE
JP2003308651A (en) * 2002-04-12 2003-10-31 Hudson Soft Co Ltd Data modifying apparatus, modified data generating method, computer executionable program for modified data generating method, original data recording method, computer executionable program for original data recording method, recording medium, illegitimate reading execution preventing apparatus, illegitimate reading execution preventing method, and computer executionable program for illegitimate reading execution preventing method
EP1509917A4 (en) * 2002-06-05 2009-12-02 Lg Electronics Inc Structure of a linking area formed on a high-density read-only recording medium and manufacturing/reproducing method and apparatus thereof
JP2004253099A (en) * 2003-02-21 2004-09-09 Toshiba Corp Sync frame structure, information storage medium, information recording method, information reproducing method, and information reproducing apparatus
JP4110530B2 (en) 2003-10-22 2008-07-02 ソニー株式会社 Information recording processing apparatus, information reproducing processing apparatus, information recording medium and method, and computer program

Also Published As

Publication number Publication date
US8305856B2 (en) 2012-11-06
WO2007037537A1 (en) 2007-04-05
JP5021197B2 (en) 2012-09-05
JP2007102846A (en) 2007-04-19
CN101278346B (en) 2011-06-15
EP1941508A1 (en) 2008-07-09
TWI372388B (en) 2012-09-11
CN101278346A (en) 2008-10-01
US20090034383A1 (en) 2009-02-05
WO2007037537A9 (en) 2007-05-31

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees